Check out google's latest market changeover. I think this is another step to google taking over. I mean, imaging having everything on your droid: music, videos, games, etc... all in the cloud.
The only downside I see to this is using up a lot of your network data. A tip is to use your wifi connection when downloading content for offline play which will work but I still think they should put a cap on how much you can download over your cellular network. Maybe add an option in the settings that can limit or increase this depending on a number you choose would be great.